FIX A SHOT / ONE CHANGE AT A TIME

Fix your next shot,
one step at a time.

Record what happened. Change one thing. Say if the next cup was Better, Same, or Worse. Then use that result to choose what to try next.

18.0g36.0g30s

START HERE

Change one thing.
Keep the rest the same.
Time
How fast it flowed
Taste
Your observation
Outcome
How the cups compared

FIX A SHOT

Record this shot. Get one next step.

Dose means dry coffee in the basket. Yield means espresso in the cup. The puck is the packed coffee bed. Channeling means water taking uneven paths through it. Enter what you measured and tasted.

YOUR SHOT

Record the shot you just tasted.

Dose is dry coffee in the basket. Yield is espresso in the cup. The puck is the packed coffee bed. Channeling means water taking uneven paths through it. Enter your measurements and notes.

Your measurements
How did the shot flow?
How did the shot taste?
Add equipment and coffee details Optional
EquipmentNo equipment selectedOptional context only. Choosing gear here does not save a setup or change the diagnosis.Read the hands-on test method →
Coffee details optional · stays on this device

Restoring your saved shot…

What this can do

It uses your measurements and notes. It does not test the puck or machine. The ratio and average flow are calculations.

SHOT RECEIPT / READY FOR YOUR NOTES

18g coffee in36g espresso out30seconds
Ratio (espresso out compared with coffee in)
1:2.00
Average flow (espresso per second)
1.20 g/s
Taste report
Sour

Enter your measurements and taste to get one next step.

SAVED SHOTS

Compare shots, not memory.

Save a shot to start a history on this device.

NO SAVED SHOTS

Your first saved shot will appear here with its measurements and next step.

HOW TO USE THE RESULT

Use one next step.
Stop when it works.

TIME IS A CLUE

Thirty seconds does not decide if a shot is good.

Time helps you compare shots when you also measure coffee in and espresso out. Extraction yield means how much coffee dissolves into the drink. Time does not prove even flow or tell you what you will like.

ONE CHANGE

One change shows what helped.

The receipt gives one next change and lists what to keep the same. Better, Same, or Worse tells you whether to keep, undo, or redirect that change.

WHAT THIS TOOL CANNOT TEST

Your notes stay your notes.

The tool can calculate the brew ratio and average flow. It cannot see the puck, measure dissolved solids, certify the machine, or confirm channeling from a checkbox.

START WITH WHAT YOU TASTED

Pick a symptom. Take one next step.

Each guide gives the first action, explains what your measurements can show, and opens Fix a shot with the symptom selected.

See all troubleshooting guides →